What is the Equivalent Weight Calculator?
Calculate chemical equivalent weight from molar mass and a reaction-specific n-factor. ITS Research Solution keeps the interactive tool above the explanation so you can calculate first and then review the method used.
Formula or method
Equivalent weight = molar mass / n-factor.
How to use this tool
Enter molar mass in g/mol and the appropriate n-factor for the reaction. For a species with molar mass 98 g/mol and n-factor 2, the equivalent weight is 49 g/eq.
Interpretation and limitations
The n-factor depends on the specific acid-base, redox, precipitation or other reaction, so it is not always a fixed property of the substance. Verify the reaction stoichiometry before formal laboratory use.
Frequently asked questions
How is equivalent weight calculated?
Divide molar mass by the reaction-specific n-factor.
Is the n-factor always the same for a substance?
No. It can depend on the chemical reaction and stoichiometry, so choose it for the specific context.